Thank you very much, you got me searching in the right direction. Yep 66-72 B body and correct for 70-71 E body mounts. (Also will do 72-74 E)
This is the kind of help that is appreciated instead of all the ridicule that many enjoy laying down. Now I can confidently price these out for my friend who is stock piling parts for his business. And engine builder who often has to supply extra parts for his customers.